Frequency response test system and test method

Abstract

The invention discloses a frequency response test system and test method. The frequency response test system comprises a prime mover, and a rotating speed signal output end and a frequency signal output end of a frequency response test signal output device are respectively connected with the input end of the prime mover. The prime motor voltage signal output end, the frequency signal output end, the current signal output end and the rotating speed signal output end are respectively connected with the frequency response test signal measurement and acquisition device. The frequency response testsignal output device receives a power grid frequency real-time acquisition signal or input frequency data, and then outputs a frequency signal and a rotating speed signal to the prime motor. After the prime mover adjusting system acts, the frequency response test signal measuring and collecting device collects voltage, frequency, current and rotating speed signals of the prime mover. The problemsthat in an existing frequency response test, only a signal generator can be adopted to output step signals, the real power grid frequency cannot be continuously simulated, a general wave recorder needs to be externally connected with components for voltage and current conversion measurement, and recording precision is reduced due to the fact that recording ranges are not matched are solved.

Description

technical field [0001] The invention belongs to the technical field of power generation equipment testing, and in particular relates to a frequency response test system and a test method. Background technique [0002] With the rapid development of the power industry, large-scale new energy sources based on traditional energy sources are integrated into the grid, which makes the problems of primary frequency regulation increasingly prominent. When a unit fails and shuts down, it will have a great impact on the power grid, and there will be large frequency fluctuations in the frequency of the power grid. When the frequency fluctuation exceeds a certain limit, it will be enough for the power grid and the connected equipment on the power grid. become a serious threat. Therefore, in order to meet the basic requirements of power grid operation, it is necessary to carry out a frequency response test such as frequency modulation, which is an important means to ensure the safety of ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a frequency response test system and test method, which can meet all the requirements of the frequency response test, and solve the problem that the current frequency response test can only use the signal generator to output step signals and cannot continuously simulate the real power grid Frequency, the use of general-purpose wave recorders requires external components to perform voltage and current conversion measurements, and the recording range does not match, resulting in a decrease in recording accuracy and other issues.

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